65961383 has 4 divisors (see below), whose sum is σ = 66614568. Its totient is φ = 65308200.

The previous prime is 65961367. The next prime is 65961419. The reversal of 65961383 is 38316956.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65961383 - 2⁴ = 65961367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65961383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65961323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326441 + ... + 326642.

It is an arithmetic number, because the mean of its divisors is an integer number (16653642).

Almost surely, 2^65961383 is an apocalyptic number.

65961383 is a deficient number, since it is larger than the sum of its proper divisors (653185).

65961383 is a wasteful number, since it uses less digits than its factorization.

65961383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653184.

The product of its digits is 116640, while the sum is 41.

The square root of 65961383 is about 8121.6613448235. The cubic root of 65961383 is about 404.0451682172.

The spelling of 65961383 in words is "sixty-five million, nine hundred sixty-one thousand, three hundred eighty-three".